arch/arm/mach-sa1100/cerf.c

   1 /*
   2  * linux/arch/arm/mach-sa1100/cerf.c
   3  *
   4  * This program is free software; you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License version 2 as
   6  * published by the Free Software Foundation.
   7  *
   8  * Apr-2003 : Removed some old PDA crud [FB]
   9  * Oct-2003 : Added uart2 resource [FB]
  10  * Jan-2004 : Removed io map for flash [FB]
  11  */
  12
  13 #include <linux/config.h>
  14 #include <linux/init.h>
  15 #include <linux/kernel.h>
  16 #include <linux/tty.h>
  17 #include <linux/device.h>
  18 #include <linux/mtd/mtd.h>
  19 #include <linux/mtd/partitions.h>
  20
  21 #include <asm/irq.h>
  22 #include <asm/hardware.h>
  23 #include <asm/setup.h>
  24
  25 #include <asm/mach-types.h>
  26 #include <asm/mach/arch.h>
  27 #include <asm/mach/flash.h>
  28 #include <asm/mach/map.h>
  29 #include <asm/mach/serial_sa1100.h>
  30
  31 #include <asm/arch/cerf.h>
  32 #include "generic.h"
  33
  34 static struct resource cerfuart2_resources[] = {
  35         [0] = {
  36                 .start  = 0x80030000,
  37                 .end    = 0x8003ffff,
  38                 .flags  = IORESOURCE_MEM,
  39         },
  40 };
  41
  42 static struct platform_device cerfuart2_device = {
  43         .name           = "sa11x0-uart",
  44         .id             = 2,
  45         .num_resources  = ARRAY_SIZE(cerfuart2_resources),
  46         .resource       = cerfuart2_resources,
  47 };
  48
  49 static struct platform_device *cerf_devices[] __initdata = {
  50         &cerfuart2_device,
  51 };
  52
  53 #ifdef CONFIG_SA1100_CERF_FLASH_32MB
  54 #  define CERF_FLASH_SIZE       0x02000000
  55 #elif defined CONFIG_SA1100_CERF_FLASH_16MB
  56 #  define CERF_FLASH_SIZE       0x01000000
  57 #elif defined CONFIG_SA1100_CERF_FLASH_8MB
  58 #  define CERF_FLASH_SIZE       0x00800000
  59 #else
  60 #  error "Undefined flash size for CERF"
  61 #endif
  62
  63 static struct mtd_partition cerf_partitions[] = {
  64         {
  65                 .name           = "Bootloader",
  66                 .size           = 0x00020000,
  67                 .offset         = 0x00000000,
  68         }, {
  69                 .name           = "Params",
  70                 .size           = 0x00040000,
  71                 .offset         = 0x00020000,
  72         }, {
  73                 .name           = "Kernel",
  74                 .size           = 0x00100000,
  75                 .offset         = 0x00060000,
  76         }, {
  77                 .name           = "Filesystem",
  78                 .size           = CERF_FLASH_SIZE-0x00160000,
  79                 .offset         = 0x00160000,
  80         }
  81 };
  82
  83 static struct flash_platform_data cerf_flash_data = {
  84         .map_name       = "cfi_probe",
  85         .parts          = cerf_partitions,
  86         .nr_parts       = ARRAY_SIZE(cerf_partitions),
  87 };
  88
  89 static struct resource cerf_flash_resource = {
  90         .start          = SA1100_CS0_PHYS,
  91         .end            = SA1100_CS0_PHYS + SZ_32M - 1,
  92         .flags          = IORESOURCE_MEM,
  93 };
  94
  95 static void __init cerf_init_irq(void)
  96 {
  97         sa1100_init_irq();
  98         set_irq_type(CERF_ETH_IRQ, IRQT_RISING);
  99 }
 100
 101 static struct map_desc cerf_io_desc[] __initdata = {
 102   /* virtual     physical    length      type */
 103   { 0xf0000000, 0x08000000, 0x00100000, MT_DEVICE }  /* Crystal Ethernet Chip */
 104 };
 105
 106 static void __init cerf_map_io(void)
 107 {
 108         sa1100_map_io();
 109         iotable_init(cerf_io_desc, ARRAY_SIZE(cerf_io_desc));
 110
 111         sa1100_register_uart(0, 3);
 112         sa1100_register_uart(1, 2); /* disable this and the uart2 device for sa1100_fir */
 113         sa1100_register_uart(2, 1);
 114
 115         /* set some GPDR bits here while it's safe */
 116         GPDR |= CERF_GPIO_CF_RESET;
 117 }
 118
 119 static void __init cerf_init(void)
 120 {
 121         platform_add_devices(cerf_devices, ARRAY_SIZE(cerf_devices));
 122         sa11x0_set_flash_data(&cerf_flash_data, &cerf_flash_resource, 1);
 123 }
 124
 125 MACHINE_START(CERF, "Intrinsyc CerfBoard/CerfCube")
 126         /* Maintainer: support@intrinsyc.com */
 127         .phys_ram       = 0xc0000000,
 128         .phys_io        = 0x80000000,
 129         .io_pg_offst    = ((0xf8000000) >> 18) & 0xfffc,
 130         .map_io         = cerf_map_io,
 131         .init_irq       = cerf_init_irq,
 132         .timer          = &sa1100_timer,
 133         .init_machine   = cerf_init,
 134 MACHINE_END